Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f3601265ec3a65e…

MALICIOUS

PDF

64.9 KB Created: 2020-12-17 22:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a1647cab261ce88dba63ff6120385064 SHA-1: 940de7d8a7eb69712ee8d7e656c0b1e3cf023044 SHA-256: 3f3601265ec3a65e1f634e8987d91fb20af275f59342ecd7b06e286f778816d5
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a phishing or malicious document, including a large number of external links and a ML classifier flagging it as malicious. The embedded URL 'https://traffnew.ru/123?utm_term=tony+evans+kingdom+marriage+pdf' is suspicious and likely leads to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'Tony Evans Kingdom Marriage PDF'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffnew.ru/123?utm_term=tony+evans+kingdom+marriage+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419192/normal_5fa9c6801e8df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_5fb5cbf5a1ece.pdfIn PDF document text
    • https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/ranidoner.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f8aa66e9bf2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484997/normal_5fb5d9855adc2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375503/normal_5f96e78aebd7a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/bees_saal_baad_1962_video_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81e598dd-ec07-4523-9911-1207d96eb541/wixikedujebaxediwu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c8f51452f90b7fe4c8fc/t/5fc172473c02f22b9d43b02f/1606513224032/jilanefexuwepaji.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13d0827a199023ab79d37/t/5fc27f7cf8cdb769c6344d78/1606582140402/95837059469.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64e12a8793968642cefca/t/5fcfcf1628714b03f1bccd51/1607454487583/70600223112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/662e56ac-12ee-443d-b395-d32a7e5f8477/vax_mach_air_troubleshooting.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC072 5504 bytes
SHA-256: 851032df62e1052a4c9c38f13195a67f69129adefc5916bf75d9a71fc5faedd0
font_01_sfnt_off0000d328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD328 10540 bytes
SHA-256: cefddf11b2712b0cae8d93d47238fc719012d48586374f7d43e721f546fe8da2

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